Matters that Invalidate or Do not Invalidate Wudu’

17. Ahmad ibn Idris and Muhammad ibn Yahya have narrated from Muhammad ibn Ahmad from Ahmad ibn al-al-Hassan from ‘Amr ibn Sa‘id from Musaddiq ibn Sadaqah from ‘Ammar al-Sabatiy who has said the following: “I once asked abu ‘Abd Allah عليه السلام, about a man who cuts some of his hairs with his teeth. Should he wipe it with water before Salah (prayer)? He (the Imam) said, ‘It is not harmful. This (wiping) applies only when it is with iron.’”